The 100 Square

The
100 square can be used to find lots of number patterns. The children can
investigate how even and odd numbers are situated in the square, how multiples
of different numbers are arranged, and where square and triangular numbers
are found. They are also a useful resource for many other types of maths
activities.

There
are two printable worksheets available:

Sheet
1 consists of an A4 page with ONE large 100 square on. This can be
used as a general classroom resource, or for the activity below if you
have a huge photocopying budget.

Sheet
2 consists of an A4 page with FOUR smaller 100 squares on (to save
your photocopying bills!). This can be used when the children are investigating
multiples:

On
one of the squares, the children should colour in the multiples of
2 in one colour. When this is done, they should look at the location
of these multiples.

On
another square, they can colour in the multiples of 3.

Repeat
this activity, colouring multiples of other numbers on different squares.

Try
colouring in multiples of two numbers on one square, e.g. colour multiples
of three in blue and multiples of four in yellow on the same
square. On which numbers have they coloured twice, i.e. which
numbers are green, and are therefore multiples of both three and four?

Colour
in square and triangular numbers on more squares. Where can they be
found? Do you notice any patterns?

You
could also use these activities (which were suggested by Simon Chubb):

Try
colouring in times tables patterns (2X, 3X, etc) on the 100 square
but write the numbers in as a zig zag (eg top line starts 1,2,3,4,5,6,7,8,9,10
but next line is 20,19,18,17,16,etc). Two worksheets based on this
idea have also been produced...